Abstract: The present invention relates to a system and a method for conducting life-cycle engagement of a candidate without human intervention on device engagement architecture. The implementation involves selecting initially, from a plurality of potential candidates based on any or a combination of pre-screening based on a set of pre-defined requirement rules and assessment with respect to multiple engagement criteria. An artificial intelligence (AI) engine associated with the system, evaluates the candidate based on responses to one or more responsive video frames generated by the AI engine. Based on a combination of the pre-screening, the assessment, and the AI engine based evaluation, the system generates a score for the at least one candidate, wherein the candidate is finally engaged based on the generated score.